CBNNews.com - JERUSALEM, Israel - Two Israelis were killed by rockets within an hour of one another on Monday, bringing the day's casualties to three.

Earlier in the day, a 27-year-old Israeli Bedouin was killed by a Grad Katyusha rocket at a construction site in central Ashkelon, which wounded more than a dozen others, most of whom were Israeli Arabs from the Galilee.

Hamas took credit for the attack, saying they'd killed a "Zionist," a standard designation for Jewish Israelis.

A mortar shell that scored a direct hit on an IDF (Israel Defense Forces) base in the western Negev killed a career soldier and injured four other soldiers.

In Ashdod, a woman leaving her car to seek shelter in a bus stop, died of shrapnel wounds sustained in the attack. Another Israeli who took shelter in the bus stop was seriously injured.

A battery of mortar shells hit the Sha'ar Hanegev Regional Council, followed by three Grad Katyusha rockets that targeted the Israeli town of Yavneh, marking the furthest north the attacks have reached so far.

By midday, Palestinians fired 17 rockets on southern Israeli communities, Army Radio reported, some of the attacks causing injuries and property damage. Several people were treated for shock.

Meanwhile, Israel opened the Kerem Shalom border crossing with the Gaza Strip to allow 100 trucks to transport supplies to residents.